Kamitugaite

 IMA-A 1983-030
Uranium 42.13.11.1
(Dana Classification Number)
(No Images) 7/E.07-110
(Strunz ID)

Property Data Remarks
Named for: The Kamituga mining district, its type location
Alternate
    Name(s):
  		•  
    Mineral Class:
    Phosphates, Arsenates and Vanadates
      Uranylphosphates and uranylvanadates with
    [UO2]+2 - [PO4 | AsO4]-3 and
    [UO2]+2 - [V2O8]-6
        Phosphuranylite series
    		 
    Chemical
        Formula:    		 PbAl(UO2)5[(P,As)O4]2(OH)9 · 5H2O
    or:
    PbAl(UO2)5(PO4)2(OH)9 · 9.5H2O    		  
    Chemical
        Composition:
    Aluminum: (Al) 1.29%
    Hydrogen: (H) 1.34%
    Lead: (Pb) 9.87%
    Oxygen: (O) 27.83%
    Phosphorus: (P) 2.95%
    Uranium: (U) 56.71%
    		by weight
    Molecular
        Weight:    		 2,098.47 daltons (amu)
    Specific
        Radioactivity:

    (All radiation is for a 1 gram, fully aged specimen)

    Specific Activity Dose Rate
    Becquerels Curies milliRems/hour microSieverts/hour
    1.01519 × 1005 2.74 × 10-06 1.37 137.09

    Estimated Average Annual Exposure: 360 mRem (3.6 milliSieverts)
    Crystalography:
    System: Triclinic
    Axial Ratios: a: 0.6879
    b: 1
    c: 0.5681
    Cell Dimensions: a: 10.98 Å
    b: 15.96 Å
    c: 9.068 Å
    Z: 2
    a: 95.1°
    b: 96.1°
    g: 80°
    V: 1,549.92 Å3
    DenCalc: 4.50
    H-M Symbol:  
    Space Group: P1, P1-
    X-Ray Diffraction:
      By Intensity ( I/Io )    		 (1): 7.95 Å
    (0.8): 3.972 Å
    (0.4): 3.271 Å
    		 
    Habit:
  • Platy
    		•   
    Cleavage:
    [001] Perfect
    [010] Perfect
    [100]  
    		 
    Fracture:    
    Moh's
        Hardness:    		 2 - 3  
    Density: 4.03 grams/cm3
    Color: Yellow  
    Streak: Yellow white  
    Luster:    
    Diaphaneity: Transparent  
    Pleochroism:
    (x): Light yellow
    (y:) Light yellow
    (z:) Yellowish green
    		 
    Ultra Violet
        Fluorescence:    		 Non-fluorescent  
    Magnetism: Non-magnetic  
    Occurance:
  		•  
    Associated
        Minerals:

    Althupite, Amblygonite, Beryl, 'Columbite', Dumontite, Eylettersite, Furongite, Lusungite, Meta-Autunite, Metavanmeersscheite, Montebrasite, 'Moreauite', Mundite, Phosphuranylite, Phuralumite, Plumbomicrolite, Quartz, Ranunculite, Rutherfordine, Saléeite, Studtite, Threadgoldite, Triangulite, Upalite, Uraninite, Vanmeersscheite

    Minerals   -   Uranium & Thorium
    mineral links

    		These are minerals known to be found with Kamitugaite
    Localities:

    Extremely rare

    Kamitugaite Localities
    Notes:

    Strongly radioactive a- and b-particles, g-rays.

    Crystals are probably metamic.